Analog Circuit
Omron E2EV-X2C1 Inductive Proximity Sensor, NPN Output, IP67, 10V-30V
Proximity Sensor Inductive NO PNP 5mm 10V to 30VDC 3-Pin
Proximity Sensor Inductive NC PNP 2mm 10V to 30VDC 3-Pin
Proximity Sensor NO NPN 2mm 10V to 30VDC